#include <stdio.h>
int main(void)
{
    char c1, c2, c3;
    scanf("%c%c", &c1, &c2);
    fflush(stdin);//清空缓冲区
    c3 = getchar();
    printf("c1 is %c\n",c1);
    printf("c2 is %c\n",c2);
    printf("c3 is %c\n",c3);
    printf("c3 is %d\n",c3);
}
//输入：ab回车c


